Originally Posted by jmh
Noelle does replace the internal piping with larger diameter pipes (from 59mm to 65mm) (see pic) and also removes the exhaust valve.
Yes, it makes sense. They will be removing the very short baffled pipes inside the rear silencers, effectively, making the exhaust a straight through version, so more noise. I bet it sounds very good, and not a £million to do, regards, SIMON.